Compile error in 2.5.50 (video/bttv-cards.c)

Hi.

I get a compile error in bttv-cards.c
Somehow I cannot find the AUDC_CONFIG_PINNACLE option anywhere in the 
kernel-configuration GUI. Perhaps somebody will know how to improve this. 
Details on request if needed.

Cheers,
Max

  gcc -Wp,-MD,drivers/media/video/.bttv-cards.o.d -D__KERNEL__ -Iinclude -Wall 
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common 
-fomit-frame-pointer -pipe -mpreferred-stack-boundary=2 -march=i686 
-Iarch/i386/mach-generic -nostdinc -iwithprefix include -DMODULE   
-DKBUILD_BASENAME=bttv_cards -DKBUILD_MODNAME=bttv   -c -o 
drivers/media/video/bttv-cards.o drivers/media/video/bttv-cards.c
drivers/media/video/bttv-cards.c: In function `miro_pinnacle_gpio':
drivers/media/video/bttv-cards.c:1742: `AUDC_CONFIG_PINNACLE' undeclared 
(first use in this function)
drivers/media/video/bttv-cards.c:1742: (Each undeclared identifier is reported 
only once
drivers/media/video/bttv-cards.c:1742: for each function it appears in.)
make[3]: *** [drivers/media/video/bttv-cards.o] Error 1
make[2]: *** [drivers/media/video] Error 2
make[1]: *** [drivers/media] Error 2
make: *** [drivers] Error 2